Foe artillery



(No Model.) 4 Sheets-Sheet 1.

H. JAKOBSSON.

CARRIAGE 0R MOUNTING FOR ARI'ILLERY. No. 531,417. Patented Dec. 25,1894.

Affornejs (No Model.) 4 SheetsSheet 2. H. JAKOBSSON.

- CARRIAGE 0R MOUNTING FOR ARTILLERY.

No. 531,417. Patented Dec. 25,1894.

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CARRIAGE 0R MOUNTING FOR ARTILLERY. No. 531,417. Patented Dec. 25,1894.

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(No Model.) 4 Sheets-Sheet 4.

H. JAKOBSSON. CARRIAGE 0R MOUNTING FOR ARTILLERY.

Patented Dec. 25 1894.

UNITED STATES PATENT OFFICE.-

IIERMAN JAKQBSSON, OF LONDON, EN GLAND.

CARRIAGE OR MOUNTING FOR ART'l LLERY.

SPECIFICATION forming part of Letters Patent No. 531,417, dated December25, 1 894.

Application filed November 15, 1898. Serial No- 490,982- (No model.)

To all whom it may concern:

Be it known that I, HERMAN J axonsson, engineer, a subject of the Kingof Sweden and Norway, and a resident of London, England, have inventedcertain new and useful Improvements in Carriages or Mountings forArtillery, of which the following is a specification, reference beinghad to the accompanying drawings.

This invention relates to wheeled carriages or mountings for artilleryand is designed to increase the stability and durability of suchmountings and to facilitate the elevation and training of the gunsthereon.

The gun is carried by and moves with a cradle which is mounted on atransom secured to the trail, .and so as to be capable of horizontal andvertical movement independently of said transom.

A'special feature of importance and novelty consists in securing thetransom to the trail in the plane of the axle and mounting the cradle onsuch transom so that the gun will be raised but very little above theaxis of the wheels. In any case, however, the advantage of fine andaccurate adjustment for elevation and laying is secured by theemployment of the cradle.

Referring to the accompanying drawings, Figure 1 is a side elevation ofa portion of a gun mounted in accordance with this invention, themounting being shown in section. Fig. 2 is a vertical transverse sectionof the gun and cradle taken through the center of the supportingtransom. Fig. 3 is a plan of a part of the mounting hereinafterdescribed. Fig. 4 is another view similar to Fig. 1, but showing a stillfurther modified form of the mounting. Fig. 5 is a plan of the same.

Like letters of reference denote corresponding parts throughout thedrawings.

A is the gun.

B is the cradle.

Q is the axle.

D, D are the wheels.

E is the trail.

For controlling the vertical turning movement of the gun and axle andfor training or turning the gun horizontally for fine or ac-,

curate laying, without moving the trail of the carriage, provision ismade as follows: that is to say- F is a suitable frame or arm attachedto the transom J and entering at its rear end a guide G which is securedto the gun cradle. The said guide G can move laterally on the frame F ashereinafter described when the gun is trained for fine or accuratelaying. The elevating gear comprises a screw-threaded shaft H through anut H supported by a tubular piece H trunnioned in the trail sides. Thesaid nut H can be rotated by a hand wheel H at the side of the trailacting through bevel gear wheels H The rear edge of the frame F isprovided with a toothed segment F. With the said segment there engages aworm I, the shaft of which is carried in bearings formed on or attachedto the cradle. I is a hand wheel for turning said worm. The worm is notcapable of endwise movement relatively to the cradle and hence when itis rotated and thereby caused to travel along the toothed segment, thecradle is carried with it thus-effecting the fine lateral pointing orlaying of the gun without moving the trail. The guide G is madesufiiciently long to allow of the desired amount of lateral turningmovement.

It will be observed that the shock on the elevating gear due to the jumpof the gun when firing is not transmitted through the horizontaltraining gear,and hence the latter som and are held in place by a blockF that fits between the jaws on the under side of the transom and issecured by bolts F F is a table preferably formed whole or in one piecewith the frame or arm F and adapted to re-. ceive the cradle which isfurnished with pieces B hook-shaped in transverse section that engagewith the edges of the table and prevent the cradle from rising. Theforward and rear ends F, F, of the table are curved to form arcs ofcircles having a common center, and

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the two sides F F of The table are flat, as in the plane of the axle, ofa cradle mounted clearly shown in Fig. 3. The opposite curved on saidtransom and movable vertically for portions of the table together form apivot elevation and horizontally for accurate layabont which the cradlecan turn for horizoning independently of said transom, and'a gun tallaying. The flat sides enable the cradle ,mounted in the cradle, as setforth.

to be placed on and taken ofi the table. The 2. In a carriage ormounting for artillery removaland replacement are effected when thecombination with the trail, the wheel the cradle is turned through aquarter of a axle, and a transom fixed to the trail, of a revolutionfrom its normal position. It will cradle mounted to turn about saidtransom o be observed that the transom J is not quite for elevation, andin a horizontal direction in line with the axis of the two parts of theindependently of the transom, for accurate axle C but is slightly inadvance thereof. By laying, a gun carried by the cradle, means thismeans the weight of the gun is utilized for elevating the cradle andmeans for turnfor partially balancing the trail. The traning the samehorizontally to elfect the fine or.

5 som mayhoweverbe coaxialwith the two parts accurate laying of the gun,substantially as of the-axle or may be placed in rear of the described.same if desired. In this mounting moreover 3. In a carriage or mountingfor artillery, the guide G is formed by a projection from thecombination with the trail, the wheel the cradle which is hook shaped intransverse axle, and a transom fixed to the trail of a gun 0 section andconstructed to engage a similar cradle mounted to turn on the transomfor book shaped projection F from the frame or elevation, a gun carriedby the cradle, said arm F. cradle also turning in a horizontal directionReferring now to Figs. 4 and 5 which show independently of the transomfor fine or acwhat is termed a galloping f carriage, the curate laying,means for elevating the cradle,

5 gun in this'construction is ivoted to turn for an arm F secured at itsforward end to the elevation about an axis carried by short transom andentering at its rear end a guide cheeks K secured to the axle O. G onthe cradle, a toothed segment formed at The mode of mounting the gun isas folsaid rear end, a worm carried by the cradle lows: that is to say,L is a clip constructed to and gearing with said toothed segment, and

o fit-round the axis K and having an upper flat means for turning saidworm, substantially face on which a fiat part B of the cradle asdescribed. rests. B is a pivot pin securing the cradle I 4. In acarriage or mounting for artillery, to the clip, and about which the guncan turn the combination, with the wheel axle of a for fine horizontalpointing. L isa distance trail comprising shafts E and checks K se- 5block inserted between the part B and the cured to the axle, a. transomsecured to said axis K. The forward edge of the clip L is cheeks, a guncradle mounted to turn thereon curved to an arc of a circle having thepivot for elevation, a gun carried by the cradle,

pin B as a center. B is a claw engaging said cradle also turning in ahorizontal di-, with said curved edge and preventing the gun rectionindependently of the transom for fine .0 from lifting. The arm F issecured at its foror accurate laying, means for elevating the ward endto the axis K and at its rear end is "gun and means for effecting thehorizontal constructed substantially like the correspondlaying saidlatter means com prising an arm-F ing arm in the mounting lastdescribed. The carried at its forward end by the transom and rest of themounting is also substantiallylike guided at its rear end by a guide Gsecured .5 that above described. to the cradle, a toothed segment formedat 1o Instead of hydraulic brakes'l may use insaid rear end, a wormcarried by the cradle dia-rubber or steel springs or butters or'otherand gearing with said toothed segment, and devices for controlling therecoil of the gun. means for turning said worm, substantially The saidinvention is also a plicable not as described. 50 only to cradlemountings but also to other In witness whereof I have hereunto set myforms of recoil or non-recoil mountings. hand this 30th day of October,1893.

What. I claim is-- HERMAN J AKOBSSON. 1. In a carriage or mounting forartillery, Witnesses: the combination with the trail, the divided GEORGEH001),

55 wheel axle, and a transom fixed to the trail THOMAS LAKE.

